Metallic ribbon imprinting apparatus for book matches



April 3, 195B R. G. SCHMITT 2,547,602 METALLIC RIBBON IMPRTNTTNG APPARATUS Fon oox MATCHES Filed March 25, 194e A v 2 sheets-sheet 1 a, "mu" 87 26 56 JNVENTOR.

@OLA/v@ 5CH/wlw .l f A BYy PIH .3 1953 IR. G. SCHMITT 2,547,602

' METALLIC RIBBON IMPRINTING APPARATUS FoR oox MATCHES Filed March 25, 19459 IN1/EN TOR. POLAND G. 5CH/W77" ATToQ/vfv Patented Apr. 3, 1951 METALLC RBBN IMPRINTING APPARA- TUS FOR BOOK MATCHES Roland G. Schmitt, Chicago, Ell., assignor to Art Lines, Inc., Michigan Detroit, Mich., a corporation of Application March 25, 1949, Serial N0. 83,458

17 Claims.

This invention relates to imprinting machines and more particularly to heated imprinting devices for metallic printing of small run specialties, although certain features thereof may he employed. with equal advantage for other purposes.

It contemplates more especially the provision of simplied instrumentalities for automatically feeding and imprinting small Quantities of spesialic/ed articles without requiring any appreciable set-up or entailing much time for personalizing or individualizing the imprints or ernhossings thereon.

' Numerous types of printing machines and speial equipment have heretofore been proposed,

`but these are comparatively intricate devices for large quantity production which require extensive set-ups for each run and are otherwise not adaptable to small quantity imprinting of special articles such as match books, napkins, cards, small containers and the like. Such articles are often imprinted, embossed, or otherwise personalized or individualized to render them more attractive or in greater demand by individuals, establishments, and institutions.

Oneobject of the present invention is to simplify the construction and improve the operation of devices of the character mentioned.

Another object is to provide a simple metallic imprinter which handles small runs or" special articles for automatic feeding, imprinting, and restacliing with individualized or personalized imprints thereon.

Still another object is to provide simple article feeding and discharging means in conjunction with an alternately reversible imprinting mechanism for articles that are reversibly disposed in stacked relation. A further object is to provide simple and effective imprinting means which can ce readily adapted to imprint small runs of initially stacked articles such as 'oook matches, small cartons, and the like, without entailing any appreciable set-up or time loss in the change-over for different imprints.

A still further object is to provide simple, cornpact, and very lexibie set-up imprinters for small run metallic imprinting of specialised articles without entaling any appreciable manual labor or intervention in the processing thereof.

Still a further object is to provide a reversing imprinter die holder which alternates its position between each imprinting stroke for special articles such as' reversely stacked book matches and the like.

Other objects and advantages will appear from the following description of an illustrated embodiment of the present invention.

'in the drawings:

Figure 1 is a perspective view of a book match imprinting machine embodying features of the present invention.

Figure 2 is a sectional view in elevation of the article support and guide taken substantially along line Iii- II of Figure l.

Figure is a sectional view in elevation of the article support and, guide taken substantially along line Illlll of Figure l.

Figure 4 is a hot-tom plan View oi the imprinting die holder shown in figure l.

Figure 5 is a top. plan View oi the device shown in Figure l, parts thereof being shown in section to clarify the illustration.

Figure 5 is a front view in elevation of the device shown in Figures l and. 5.

The structure selected for illustration is not intended to serve as a limitation upon the scope or teachings of the invention, but is merely illustrative thereof. There may be considerable variations and adaptations of all or part of the teachings depending upon the dictates of commercial pactice.

The present embodiment comprises a substantially rectangular housing it wherein parallel vertical plates ii-I2 are maintained in spaced reiation by vertical end plates ES--ML Top and oottorn plates {5I- i6 join the end plates i3--l4, and these are preferably provided with edge ianges il (Figure 1) to rigidify the housing EQ.

The housing lo serves to support and conne the actuating instrumentalities as will appear more fully hereinafter. An enlarged opening i3 'is preferably provi-ded in the end wall itl (Figure 1) to permit access to the interior of the housing it for lubricating the moving parts and to afford inspection without removal or a housing wall or walls l--l2 or l--l or i--id In the imprinting of book matches I9, for instance, the variation between the thin edge Eil and the comparatively thicker edge 2i (Figures 1 to 3) renders it necessary to alternate and oppositely dispose the adjacent match hooks ll to lprovide a compact and commercially acceptable package thereof. To this end, a vertical chute 22 sized to receive a full stack of alternately disposed posi: matches It as they are removed from a .standard package, is attached to the housing wall ii proximate to the end'wall I3 thereof.

The chute 22 has a front opening 23 along the length thereof to aord full vision of the interior and to prrnit the ready placement of a stack of match books I9 therein while being fully supported with both hands of the attendant. The upper end of the chute 22 has upwardly diverging fanges ifi-25 to assure the convenient insertion of stacks of book matches I9 therein. The bottom Aof the chute 22 is open and communicates with a horizontal trough 26 which has upstanding parallel flanges 21-23 complemental to and to freely glide individual match books I9 that are dis- 'pi ced in alternate positions therea'long.

The chute 22 terminates at its lower end. short of the bottom of the trough 26 for a distance slightly greater than the greatest thickness oi the match book end 2l so that the latter will slide thereunder and along the trough 25 without permitting more than one book match E9 to be displaced from the lower end of the book match stack confined in the chute 22. The lowermost book match i9 is displaced from the stack 22 by means of a slide plate .29 attached to a bracket disposed beneath the trough '26 for reciprocation by a rod4 3 I. The rod 3l is disposed in a groove 32 provided in the bottom of the bracket 3S for engagement therewith in effecting the reciprocation of the slide plate 29 within the limits of a horizontal slot 33 (Figure 6) that is provided in the housing wall II to accommodate the rod 3|.

The book matches I9 that are displaced along the trough 26 which extends for a distance somewhat beyond the imprinting station to be hereinafter described, are held in single tier adjacent relation against accidental or free movement except for positive feeding displacement by the succeeding book match I9 which is ejected by the reciprocative slide 29, by spaced wire springs 38-39 (Figures 1 to 3). The springs 38--39 are mounted in chute side wall engaging plates 451-49 for extension in the path of the chute ejected match books I9 along the trough 26 toward the imprinting station to be presently described.

The personalized imprinting on the cover 40 of match books I9 in the same directional position, is accomplished by a vertical reciprocably mounted and rotatable pitman 4I. The pitman 4I comprises, in this instance, a cylindrical member 42 wherein is confined an electric heating element 43 (Figure 6) disposed proximate to the lower extremity thereof. The lower pitman extremity terminates in a type clamp 44 which has a manual screw operated adjusting member 45 which renders it possible to quickly set and reset different type bars 46, in this instance three, representing the initials of an individual.

The elongated round rod-like pitman 4I is complemental to and freely slides within a suitably bored guide shank 41 which is attached to a bracket 4t fixed to the housing wall I I. Suitable clamps 49 anchor the guide shank 41 to the bracket block 46 so that a portion thereof is disposed therebeneath to provide for a rack guide 50 formed integral with the guide shank 41.

A rack bar 5I reciprocates in the guide 50 to mesh with a pinion 52 (Figures 1 and 5) provided on the pitman 4I within the guide shank 41. The pinion 52 rotates with the pitman 4I and is slidable longitudinally thereof to permit its reciprocation alternately with its rotation or oscillation. Consequently, the horizontal reciprocation of the rack bar 5I will rotate or oscillate the pitman 4I for one-half a revolution while the latter is vertically at rest, and the rack bar 5I is at rest while the pitman 4I is reciprocated by instrumentalities which will be hereinafter described. As shown, the pitman 4I terminates upwardly in a tubular reduced extension 53 which receives the heating element electric wires 54 therethrough to emerge at its upper extremity proximate to the solid fiat end 55 thereof (Figur'es l and 6).

-An attaching knuckle 56 terminating in a bifurcated pivotal joint 51 connecting with an adjustable connecting rod 58, is fitted to the fiat end 55 of the pitman extension 53 so that reciprocative movement will be imparted to the pitman 4I. This is effected by means of a crank pin 59 eccentrically mounted to a disc 60 carried by a stud shaft 6I. The stud shaft 6I is horizontally journalled in the housing wall II and carries a sprocket 62 on the interior side thereof for rotation by a meshing drive chain 63 common to other sprockets as will appear more fully hereinafter for actuating the various instrumentalities in timed relation.

As shown, the electric wires 54 lead to a thermostat 55 of standard construction which, in turn, is connected in series with an electric power source (not shown) through lead wires 64 to maintain the heating element 43 at the required temperature for heating the type bars 46. The thermostat 55 has three heat control positions and an off position. It controls the heating element 43 so that the type bars 46 will be maintained at a proper temperature to transfer the metal foil such as aluminum from its wax base roll strip 65 to, in this instance, the contacted covers 4I of the match boxes I9 for adherence thereon. Such heat imprintings of metal foil will adhere to almost any type of surfaceeven waxed cartons such as ice cream containers are effectively imprinted with the flavor or variety imprint thereon after such cartons are otherwise completed, printed and waxed.

The metal foil roll strip 65 is mounted on a spool 66 journalled on a bracket 61 fixed to the housing II in any suitable position. The roll strip 65 extends between confronting feed rollers 68-69 fixed to shafts 19--1I that are springurged as at 12--13 to frictionally grasp the foil strip 65 therebetween and to effect the feeding thereof. To this end, the upper roller 69 has a knurled surface for positive feeding of the strip 65. The intermittent feeding of the strip 65 is effected by intermittently rotating the upper roller 69, and this is accomplished through the medium of a ratchet wheel 14 on the shaft 1I inside of its supporting bracket 15. A pawl 16 is xed to a stud shaft 11 journalled in the lower end of the bracket 15, for connection as at 15 with a rod 19.

The rod 19 extends to a bell crank lever 86 having angularly offset arms Ill-62 between which a mount 83 extends to serve as a support thereof. The longer lever arm 82 is pivotally connected to a block 84 (Figurev 5) that is an extension of the rod 3| for oscillation responsive to the reciprocation of the latter. To this end, the lever mount 63 is disposed in an elongated slot 85 to compensate for the change in position of the bell crank 86 as the reciprocatory movement of the rod 3I is translated into oscillatory movement of the bell crank 80.

The oscillatory movement of the bell crank actuates the rod 19 to impart oscillatory movement to the pivoted bracket 15 and the pawl 16 which is mounted to intermittently rotate the ratchet wheel 14 and thus impart Acorresponding intermittent rotation of the feed rollel` 69 to advance the metallic foil strip 65 across the upstanding flanges or trough rails 2l-28 (Figure 1) and beneath the type bars i6 at the imprinting station. The metallic foil strip 65 extends over the trough rail 27-28 for free suspension between the housing wall I l and the trough 26 (Figure l). While the illustrated foil strip feeding mechanism shows the strip 65 being displaced across the trough 26, it should be observed that such may be4 arranged so the strip B5 is tensioned and pulled across the trough 26, depending upon the dictates of commercial practice. Other imprinting expedients may be employed as a substitute for the metal foil strip 65.

It should be noted that the trough 2-6 in the region of the imprinting station where a match book is is held against movement by the extremities of the wire springs sil-$5, is provided with bottom undercuts 535-31 (Figures 2 and 8) which incline downwardly from the central region of the trough 2t toward the inside walls of the trough flanges or rails 2?-28 to compensate for the enlarged thickness of the match book cover hinge edge 2i and to accommodate the spring action and yield thereof during the imprinting operation. Consequently, the match book covers te will be in a substantially horizontal position after the type bars fit impact thereagainst. This insures the uniform applica.-

tion of the metallic imprint represented by the type bars .'36 which, owing to their elevated temperature, transfers its corresponding counterpart from the metallic foil 65 to the cover iii of the match books le for adherence thereon.

It should be observed that with this arrangement of parts, the instrumcntalities `are timed so that the boo-ks is and the metallic foil strip '55 are at rest momentarily while the pitman (li moves downwardly against the lmetallic strip 65 and the cover 'te of the match book iS positioned thereunder, As the match book feeder slide plate advances, the pitm'an iii ascends with the type bars lid, their clamp 135, and holder member 62. During the ascent of the pitman c i,

it rotates one hundred and eighty degrees from its previous rotary position,l thereby placing the instrumentalities in position to effect a corresponding imprint on a succeeding oppositely positioned match book which are alternately reversed so that the pitman si is alternately oscil-l lated from the previous setting to correspond with the alternation of succeeding match books i9.

As the slide 29 feeds succeeding alternately disposed match books iS from the trough 2E after each imprint, the imprinted match books i9 aref` displaced onto a pivotal slide t8. The slide 88 is nxed to a rod t9 that is pivotally mounted between upstanding walls or side rails Sil-iii of a trough S2 comprising a horizontal stacking member from which the edge supported and alternately disposed match books l are manually removed for replacement in units of twenty-five or fifty (more or less) into the original carton from which they were removed. There are usually i'lfty match books to a carton in two tiers or stacks for initial placement in the feeding chute 22, which will accommodate a full carton of standard book matches, although the apparatus may be designed for a lesser or greater number, depending upon the dictates of coi` mercial practice. The match books i8 are displaced from the imprinting trough 2t to the stacking trough 92 by the oscillation of the slide 88 with its mounting rod 38. lThe rod-B has a weight 93 on oneend thereof tonormally posi-r driven by the chain 63.

tion the slide 8.8 in its extreme counterclockwise position (viewed from Figure 6).

The other extremity of the rod 8S has an offset arm Q3 which is disposed in the path of a trip Se eccentrically mounted on a disc S5. The disc 95 is rotated as will appear more fully hereinafter, so that the trip ell will engage the slide rod arm 93 at timed intervals to flip the slide 88 in a clockwise direction (see dotted outline in Figure 6) to displace match books I9 in edgewise relation on the stacking trough t2. To this end', the stacking trough 92 is provided with a slidable stop 9G against which the imprinted book matches are displaced. A hooked rod 9? is mounted at S8 to the stacking trough wall 93 so that the hook end 99 thereof will project into the interior of the stacking trough S2. To this end, the hooked end 99 projects through an elongated slot E03 provided in the trough wall Con.- sequently, the hook end @Si is disposed in the path of the imprinted match book ends so that it will hold the first match book i9 in a predetermined position.V Thereafter succeeding inc,n 'printed match books I9 will displace the previcus match book it past the hook end Se to provide for advancement against the block 96 which is initially placed in line with the end 99 of the hook s? serving as a spring clipor trip.

The instrumentalities thus far described are actuated in synchronized timed relation by the endless chain 63 which' is driven by a. sprocket pinion iii! fixed to a shaft H92 operatively conu nected by a train of gears (not shown) which are confined within a reduction gear housing les. The reduction gear housing its is formed integral with the housing itil of an electric motor i535. rIhe electric motor i515 is fixed to a base H35 suitably supported within the frame housing is. The electric motor is controlled by a switch lill connected to a source of electric power (not shown).

The power rotated pinion ii drives the chain E3 which meshes with the sprocket wheel Eil which reciprocates the pitman 4i. The endless chain t3 exten-ds over another sprocket Hi8 xed to a shaft m9 which is supported between the frame housing walls l |I2 (Figure 5) to carry a disc wheel il@ for rotation therewith. An eccentrically positioned pin lli on the disc wheel iid has an adjustable crank arm H2 connected thereto to provide a furcated bracket H3 for pivotal and slidable connection as a pin l h3 moves in an elongated slot H5 provided in the pitman oscillating rack 5l which is reciprocated responsive to the rotation of the disc wheel H0 This movement serves to oscillate the pinion 52 which, in turn, rotatively oscillates the pitman 4I during its up movement to alternately reverse the position of the type bars d'6. In the present embodiment, there is a ratio of two-toone (2:1) between the sprocket H08 and the sprockets Si-iiiii it, the latter being on a one-to-one l t l) ratio with each other, although this ratio may vary within a wide range depending upon the articles to be imprinted and the dictates of commercial practice.

The chain 63; also extends over a sprocket ii carried by a stub shaft lll journalled in a bearing I i8 mounted in the frame housing wall Ii. The shaft lll carries the disc wheel 9&3 with its trip pin 94 on the outside of the frame wall Il, and a smaller disc i i9 is secured fast tc the shaft l i l on the inside of the frame wall i l. The discsV to the larger disc wheel 95 for rotation in the path of the shaft offset Q3 which actuates and flips the match book slide Sii that transfers the imprinted match book i9 from the imprinting station to the stacking trough 92 as described supra.

The smaller disc wheel l I has a crank rod Connected thereto by means of a crank pin |21 so that rotation of the disc ii will oscillate the crank rod I2@ which is connected at its other extremity to the slide plate connecting pin 3i through a swivel connector block 122 (Figures and 6) This results in the reciprocation of the pin 3l Within the elongated horizontal slot 33 to guide and determine the reciprocation of the slide plate 29 which successively feeds the match books I9 from the vertical chute 22 along the trough 2S. It will be apparent, therefore, that the endless chain 63 is in continuous meshing engagement with the driven sprockets Si), |08, H, and driver sprocket itl.

With the arrangement of parts above described, substantially the same instrumentalities can be utilized for imprinting collapsed ice cream oartons and similar stacked sheets. While the type bar reversing mechanism is desirable, such need not be utilized with articles other than book matches and the like that are packed. alternately for compactness and convenience. Whenever the articles to be imprinted are not alternately disposed, the rotary oscillation of the type bars 46 is rendered unnecessary and this may be optionally dispensed with by removing the rack 5l from operative meshing engagement With the pinion 52. This simple apparatus is adaptable to small runs of personalized and varietized imprints without entailing any appreciable manual labor or time in set-up or change from one run to another.

While I have illustrated and described a preferred embodiment of this invention, it must be understood that the invention is capable of con.- siderable variation and modification without departing from the spirit of the invention. I, thereu fore, do not Wish to be limited to the precisewsletails of construction set forth, but desire to avail myself of such variations and modifications as come within the scope of the appended claims.

I claim:

l. In an imprinting machine, the combination with means for maintaining substantially flat articles in vertical stacked relation; of means for feeding said articles singly from said stack along a predetermined rectilinear path; reciprocative imprinting means operating relative to said rectilinear path for imprinting impact against the articles; means for heating said imprinting means; feeding means for disposing a metallic foil ribbon beneath said imprinting means; and means for operating said article feeding, reciprocative imprinting, and metallic foil feeding means in synchronized timed relation.

2. In an imprinting machine, the combination with means for maintainingr substantiallyy flat articles in vertical stacked relation; of means for intermittently feeding said articles singly from said stack along a predetermined rectilinear path; reciprocative imprinting means operating intermittently relative to said rectilinear path for imprinting impact against the articles; means for heating said imprinting means; feeding means for disposing a metallic foil ribbon beneath said imprinting means; and means for intermittently operating said article feeding, reciprocative imprinting, and metallic foil feeding means in synchronized timed relation.

3. In an imprinting machine, the combination with means for maintaining substantially flat articles in vertical stacked relation; of means for feeding said articles singly from said stack along a predetermined rectilinear path; reciprocative imprinting means operating relative to said rectilinear path for imprinting impact against the articles; means for heating said imprinting means; feeding means for disposing a metallic foil ribbon beneath said imprinting means; means for operating said article feeding, reciprocative imprinting, and metallic foil feeding means in synchronized timed relation, and means for restacking said imprinted articles to conform with said initial vertical stacking thereof.

4. In an imprinting machine, the combination with means for maintaining substantially flat articles in vertical stacked relation; of means for feeding said articles singly from said stack along a predetermined rectilinear path; reciprocative imprinting means operating relative to said rectilinear path for imprinting impact against the articles; means for heating said imprinting means;

feeding means for disposing a `metallic foil ribbon beneath said imprinting means; means for operating said article feeding, reciprocative imprinting, and metallic foil feeding means in synchronized timed relation, and pivotal means in said path for re-stacking said imprinted articles to conform with said initial vertical stacking thereof.

5. In an imprinting machine, the combination with means for maintaining substantially flat articles in vertical stacked relation; of means for feeding said articles singly from said stack along a predetermined rectilinear path; reciprocative imprinting means operating relative to said rectilinear path for imprinting impact against the articles; means for reversing the position of said imprinting means alternately with each reciprocation thereof; means for heating said imprinting means; feeding means'for disposing .a metallic foil ribbon beneath said imprinting means; and means for operating said article feeding, reciprocative imprinting, and metallic foil feeding means in synchronized timed relation.

6. In an imprinting machine, the combination With means for maintaining substantially flat articles in vertical stacked relation; of means for intermittently feeding said articles singly from said stack along a predetermined rectilinear path; reciprocative imprinting means operating intermittently relative to said rectilinear path for imprinting impact against the articles; means for reversing the position of said imprinting means alternately with each recpirocation thereof; means for heating said imprinting means; feeding means for disposing a metallic foil ribbon beneath said imprinting means; and means for intermittently operating said article feeding, reciprocative imprinting, and metallic foil feeding means in synchronized timed relation.

7. In an imprinting machine, the combination with means for maintaining substantially flat articles in vertical stacked relation; of means for feeding said articles singly from said stack along a predetermined rectilinear path; reciprocative imprinting means operating relative to said rectilinear path for imprinting impact against the articles; means for reversing the position of said imprinting means alternately with each reciprocation thereof; means for heating said imprinting means; feeding means for disposing a metallic foil ribbon beneath said imprinting means; means for operating said article feeding, reciprocative imprinting, and metallic foil feeding means in synchronized timed relation, and means for re-stacking said imprinted articles to conform with said initial vertical stacking thereof.

8. In an imprinting machine, the combination with means for Amaintaining substantially fiat articles in vertical stacked relation; of means for feeding said articles singly from said stack along a predetermined rectilinear path; reciprocative imprinting meansv operating relative to said rectilinear path for imprinting impact against the articles; means for reversing the position of said imprinting means alternately with eachreciprocation thereof; means for heating said imprinting means; feeding means for disposing a metallic foil ribbon beneath said imprinting means; means for operating said article feeding, reciprocative imprinting, and metallic foil feeding means in synchronized timed relation, and pivotal means in said path for restacking said imprinted articles to conform with said initial vertical stacking thereof.

9. In a `device of the character described, the combination with article stacking, feeding, imprinting, and restacking means; of means for reversing the position of said imprinting means after each imprinting operation thereof; means for restacking the imprinted articles; and means for intermittently operating all of said means in synchronous timed relation.

10. In a device of the character described, the combination with article feeding, reciprocative imprinting and restacking means; of oscillating means for reversing the position of said imprinting means after each imprinting operation thereof; means for restacking the imprinted articles; and means for intermittently operating all of said means in synchronous timed relation.

11. In a device of the character described, the combination with article stacking, reciprocative feeding, reciprocative imprinting and restacking means; of oscillating means for reversing the position of said imprinting means after each imprinting operation thereof; pivotal means for restacking the imprinted articles; and means for intermittently operating all of said means in synchronous timed relation.

12. In a device of the character described, the combination With article stacking, reciprocative feeding, reciprocative imprinting and restacking means; of oscillating means for reversing the position of said imprinting means after each imprinting operation thereof; metallic foil unreeling means for disposing foil beneath said imprinting means; pivotal means for restacking the imprinted articles; and means for intermittently operating all of said means in synchronous timed relation.

13. In an imprinting machine for book matches, the combination with imprinting means, of means for oscillating said imprinting means alternatively of each imprinting thereof, and means for intermittently unreeling metal foil beneath said imprinting means.

stacking, reciprocative 14. In an imprinting machine for book matches, the combination with reciprocative imprinting means, of means for rotarily oscillating said imprinting means alternatively of each imprinting reciprocation thereof, and means for intermittently unreeling metal foil beneath said imprinting means.

l5. In an imprinting machine for book matches, the combination with reciprocative imprinting means, of means for rotarily oscillating said imprinting means alternatively of each imprinting reciprocation thereof, means for intermittently unreeling metal foil beneath said imprinting means, and means for stacking said imprinted book matches in aligned relation.

16. In a device of the character described, the combination with article stacking means for match books, of a trough disposed beneath said stacking means for receiving match books therefrom, feeding means cooperating with said stacking means and said trough to intermittently displace match books therealong, and reciprocative imprinting means disposed above said trough to intermittently impress said match books, there being complemental configuration irregularities in said trough beneath said imprinting means to compensate for the irregularities in match books to assume a substantially horizontal imprinted position with said imprinting thereagainst.

17. In a device of the character described, the combination with article stacking means for match books, of a trough disposed beneath said stacking means for receiving match books therefrom, feeding means cooperating with said stacking means and said trough to intermittently displace match books therealong, reciprocative imprinting means disposed above said trough to intermittently impress said match books, there being complemental configuration irregularities in said trough beneath said imprinting means to compensate for the irregularities in match books to assume a substantially horizontal imprinted position with said imprinting thereagainst, and means for reversing the position of said imprinting means with each reciprocation thereof to correspond with the alternative stacking relation of the match books.

ROLAND G. SCHMITT.

REFERENCES CITED The following references are of record in the lle of this patent:

UNITED STATES PATENTS Number Name Date 1,829,562 Kohlwey Oct. 27, 1931 1,948,087 Aberson Feb. 20, 1934 1,955,798 Fassmann Apr. 24, 1934 2,006,147 Paridon June 25, 1935 2,078,448 Jost Apr. 27, 1937 2,102,132 Schmidtke Dec. 14, 1937 2,219,251 Catim' Oct. 22, 1940 

